<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">C.M. Brasier</style></author><author><style face="normal" font="default" size="100%">Rose, J.</style></author><author><style face="normal" font="default" size="100%">Gibbs, J. N.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">An unusual Phytophthora associated with widespread alder mortality in Britain</style></title><secondary-title><style face="normal" font="default" size="100%">Plant Pathology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">AGRICULTURAL pests</style></keyword><keyword><style  face="normal" font="default" size="100%">ALDER</style></keyword><keyword><style  face="normal" font="default" size="100%">ALDER – Diseases &amp; pests</style></keyword><keyword><style  face="normal" font="default" size="100%">GREAT Britain</style></keyword><keyword><style  face="normal" font="default" size="100%">Phytophthora</style></keyword><keyword><style  face="normal" font="default" size="100%">PLANT diseases</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1995</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3059.1995.tb02658.x/abstract</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">6</style></number><volume><style face="normal" font="default" size="100%">44</style></volume><pages><style face="normal" font="default" size="100%">999 - 1007</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;During 1993 and 1994 an unusual &lt;em&gt;Phytophthora&lt;/em&gt; was consistently isolated from bark lesions at the stem bases of dying alder in Southern Britain. The &lt;em&gt;Phytophthora&lt;/em&gt; resembles &lt;em&gt;P. cambivora&lt;/em&gt; in both its gametangial and sporangial morphology. However, it is distinct from this species in being homothallic rather than outcrossing; in producing a significant proportion of small and sometimes partially developed oogonia; in having a high frequency of oosphere abortion; in having an appressed felty colony type with little or no aerial mycelium; and in exhibiting a lower optimum temperature for growth (c.22.5°C) and lower growth temperature maximum (c.29°C) on carrot agar than &lt;em&gt;P. cambivora&lt;/em&gt; (c.27.5° and 33.5°C respectively). An inoculation test confirmed its pathogenicity to &lt;em&gt;Alnus&lt;/em&gt;. The status of the alder &lt;em&gt;Phytophthora&lt;/em&gt; is discussed. On the basis of its unusual characteristics and unusual host it is suggested that it might be a new or recently introduced organism rather than a previously unrecorded indigenous variant of &lt;em&gt;P. cambivora&lt;/em&gt;.&lt;/p&gt;</style></abstract></record></records></xml>